“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	knot exterior knot genus knotgrass knot group knot invariant knot linking knot matrix knot move knot; node knot polynomial knot problem knot projection knot shadow knot signature knot singularity knot sum knot symmetry knot table knotted knotted curve knotted polygon knotted sphere knot tenacity knot theory knot type

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